Conniving old Poker Face is up to more of his dirty tricks. He has pulled some strings in Washington so that the Tribe of the Upright Men may be granted a license for gambling. Ignoring the advice of his good friend Lucky Luke, Chief Earnest Eagle accepts the dubious proposition in exchange for a meager stipend... drinking water! While Poker Face fills his pockets with filthy lucre, easy water turns all the Upright braves into spoiled little papooses! Full of remorse, Earnest Eagle calls to the rescue his brother Luke-the-pure-hearted. Nothing is more shameful to an Upright Man than to be downright irresponsible!

Out west, things are a mess! Not a single buffalo on the horizon. The federal government quickly takes action and decides to bring the noble beast back to its natural habitat. The news spreads like wildfire amongst the hunters and they claw at each other to get first dibs at prime rib. Lucky Luke who has been chosen to guide the last pair of buffaloes back to the prairies of Wyoming, is going to go head-on with Buffalo Bill and J.J. Misdeal, the fastest fingers in West. But he is also going to have to reason with the Indians who have been deprived for too long of their favourite game. The whole thing would be just another day’s work for our lonely cowboy if those dang furry critters weren’t so civilized...

The Daltons have just escaped from the federal penitentiary along with A.B. Faria, an old, wheel-chair bound prisoner who claims he knows where the legendary treasure of Cibola is hidden. The fugitives are so discreet that pretty soon everyone west of the Mississippi knows about the treasure, including the Federal government who hires Lucky Luke to chase down the convicts... and find the treasure. Lucky Luke spies on our favorite friends from a distance as they’re dragged from one end of Arizona to the other by an old man with a memory shot full of holes. And to cap it off, the Daltons have to protect old pops from all of the crooks who are drawn to the treasure like flies to manure!! The mythical city of Cibola is finally uncovered… but once they see it, nobody is going to fight over the famed treasure!

Lucky meets the brothers Lumière and saves the French pioneers of cinematography on their way to Holly Woods. However, their movies were destroyed, so the wild west folk must act in a new one.

Elmer Rotten, criminal par excellence and, master of disguise has turned himself into none other than yours truly, Lucky Luke. What better way to heist, rip off and bleed the wild west of its last penny?! Suddenly the "real" Lucky Luke becomes the most wanted man in the frontier and he finds himself having to hunt down... himself! Of course Rintindumb, the stupidest dog in the West is utterly convinced that Elmer Rotten is the "real" Lucky Luke! And faithful old pooch that he is, nobody, but nobody is going to lay a paw on his master!

Exasperated by Queen Victoria’s unbearable superiority complex, President Grant decides to challenge "her majesty" to a contest: Lucky Luke VS Sherlock Holmes. The goal: catch the Daltons who have "miraculously" escaped from jail. When the two meet, sparks fly, outrageous, stupendous, preposterous: how else can one qualify the confrontation between two legendary heroes? Our solitary cowboy is going to find the eccentric customs of the "so-terribly-British" detective just a "wee bit weird". An episode that brims with "Gentleman’s relish", lime-not-always-so-cordial and tea of course; but with just a twist of lemon mind you...